Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Rovera, Daniele"'
Autor:
Lopez, Olivier, Kéfélian, Fabien, Jiang, Haifeng, Haboucha, Adil, Bercy, Anthony, Stefani, Fabio, Chanteau, Bruno, Kanj, Amale, Rovera, Daniele, Achkar, Joseph, Chardonnet, Christian, Pottie, Paul-Eric, Amy-Klein, Anne, Santarelli, Giorgio
Publikováno v:
Comptes rendus de l'acad{\'e}mie des sciences, Physique, 2015, 16 (5), pp.531-539
The distribution and the comparison of an ultra-stable optical frequency and accurate time using optical fibres have been greatly improved in the last ten years. The frequency stability and accuracy of optical links surpass well-established methods u
Externí odkaz:
http://arxiv.org/abs/1507.04135
Autor:
Guéna, Jocelyne, Abgrall, Michel, Rovera, Daniele, Rosenbusch, Peter, Tobar, Michael E., Laurent, Philippe, Clairon, André, Bize, Sébastien
Publikováno v:
Phys. Rev. Lett. 109, 080801 (2012)
We report tests of local position invariance based on measurements of the ratio of the ground state hyperfine frequencies of 133Cs and 87Rb in laser-cooled atomic fountain clocks. Measurements extending over 14 years set a stringent limit to a possib
Externí odkaz:
http://arxiv.org/abs/1205.4235
Autor:
Guéna, Jocelyne, Abgrall, Michel, Rovera, Daniele, Laurent, Philippe, Chupin, Baptiste, Lours, Michel, Santarelli, Giorgio, Rosenbusch, Peter, Tobar, Michael E., Li, Ruoxin, Gibble, Kurt, Clairon, André, Bize, Sébastien
Publikováno v:
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, vol. 59, pages 391-420 (2012)
We give an overview of the work done with the Laboratoire National de M\'etrologie et d'Essais-Syst\`emes de R\'ef\'erence Temps-Espace (LNE-SYRTE) fountain ensemble during the last five years. After a description of the clock ensemble, comprising th
Externí odkaz:
http://arxiv.org/abs/1204.3621
Autor:
Parthey, Christian G., Matveev, Arthur, Alnis, Janis, Bernhardt, Birgitta, Beyer, Axel, Holzwarth, Ronald, Maistrou, Aliaksei, Pohl, Randolf, Predehl, Katharina, Udem, Thomas, Wilken, Tobias, Kolachevsky, Nikolai, Abgrall, Michel, Rovera, Daniele, Salomon, Christophe, Laurent, Philippe, Hänsch, Theodor W.
We have measured the 1S - 2S transition frequency in atomic hydrogen via two photon spectroscopy on a 5.8 K atomic beam. We obtain $f_{1S-2S} = 2 466 061 413 187 035 (10)$ Hz for the hyperfine centroid. This is a fractional frequency uncertainty of $
Externí odkaz:
http://arxiv.org/abs/1107.3101
Akademický článek
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Autor:
Uhrich, Pierre, Rovera, Daniele
Publikováno v:
CCTF Working Group on GNSS
CCTF Working Group on GNSS, Jun 2017, BIPM, France
CCTF Working Group on GNSS, Jun 2017, BIPM, France
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2417::ea5dd4d8b0622dcdd786c30c52a30276
https://hal.science/hal-03735193
https://hal.science/hal-03735193
Autor:
Rovera, Daniele
Publikováno v:
Science of time 2016
Science of time 2016, Jun 2016, Cambridge, Massachusetts, USA, United States
Science of time 2016, Jun 2016, Cambridge, Massachusetts, USA, United States
International audience
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______2417::91cdff13f72cef86230e47de96378c37
https://hal.science/hal-03803789
https://hal.science/hal-03803789
Autor:
Riedel, Franziska, Benkler, Erik, Abgrall, Michel, Achkar, Joseph, Al-Masoudi, A., P Barwood, G., Baynes, F. N., F a Baynham, C., Bilicki, Slawomir, Bize, Sébastien, Bookjans, Eva, Bowden, W., Calonico, D., Cerretto, G., Clivati, C., Costanzo, G., Defraigne, P., Delva, Pacôme, Donnellan, S., Dörscher, S., Gerginov, V., Gill, Patrick, M Godun, R., Grebing, C., Guéna, Jocelyne, Häfner, Sebastian, R Hill, I., Hobson, R., Huang, G., Huntemann, N., M Jones, J., a King, S., a Klein, H., Lamb, A., Le Targat, Rodolphe, Leute, J., Levi, Federico, Lipphardt, B., Lisdat, Christian, Lodewyck, Jérôme, S Margolis, H., Menchetti, M., B R Nisbet-Jones, P., Ozimek, F., Peik, E., Petit, Gérard, Piester, Dirk, Pizzocaro, M., Rolland, A., Rotondo, M., Rovera, Daniele, Rust, F., Sanner, C., Schäfer, Wolfgang, Sesia, I., Shemar, S. L., Szymaniec, K., Tamm, Chr., Weyers, Stefan, Whibberley, P. B.
Publikováno v:
European Frequency and Time Forum 2016
European Frequency and Time Forum 2016, Apr 2016, York, UK, United Kingdom
European Frequency and Time Forum 2016, Apr 2016, York, UK, United Kingdom
International audience; Various Yb ion, Sr lattice and Cs fountain clocks at INRiM, LNE-SYRTE, NPL and PTB had been compared simultaneously over a 3-week campaign using satellite-based techniques. With full 20 MChip/s modulation bandwidth TWSTFT link
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::68e4dc8204a857365858c3edc16189ff
https://hal.science/hal-03802479
https://hal.science/hal-03802479